Difference between revisions of "1953 AHSME Problems/Problem 3"
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Trying each case out, we see | Trying each case out, we see | ||
<math>(x+iy)(x-iy)=x^2+xyi-xyi+(iy)(-iy)=x^2+(-1)(-y^2)=x^2+y^2</math> | <math>(x+iy)(x-iy)=x^2+xyi-xyi+(iy)(-iy)=x^2+(-1)(-y^2)=x^2+y^2</math> | ||
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So <math>\boxed{\text{D}}</math> works | So <math>\boxed{\text{D}}</math> works | ||
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+ | ==See Also== | ||
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+ | {{AHSME 50p box|year=1953|num-b=2|num-a=4}} | ||
+ | |||
+ | [[Category:Introductory Algebra Problems]] | ||
+ | {{MAA Notice}} |
Latest revision as of 19:17, 1 April 2017
The factors of the expression are:
Solution
Trying each case out, we see
So works
See Also
1953 AHSC (Problems • Answer Key • Resources) | ||
Preceded by Problem 2 |
Followed by Problem 4 | |
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All AHSME Problems and Solutions |
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